TW201301322A - Antistatic switch and electronic device with the antistatic switch - Google Patents

Abstract

An antistatic switch includes six terminals. The six terminals are arranged in pairs to form a double-column type, wherein a first terminal, a second terminal, and a third terminal of the six terminals are arranged in one side of the antistatic switch, and the fourth terminal, the fifth terminal, and the sixth terminal are arranged in another side of the antistatic switch. The second terminal between the first and the third terminal is a public access terminal and connected to a microprocessor unit. One of the first and the third terminal is connected to a power terminal and the other one of the first and the third terminal is vacant. The forth terminal, the fifth terminal, and the sixth terminal are all connected to the ground. An electronic device with the antistatic switch is also provided.

Description

Antistatic switch and electronic device having the same

The invention relates to an antistatic switch and an electronic device having the same.

The switch is one of the most commonly used electronic components in all electronic products, and there is generally a gap between the switch button and the outer casing of the electronic device, and static electricity can easily enter the circuit board inside the electronic device from the gap for electrostatic discharge, thereby The electronic components on the board are damaged by static electricity. Therefore, most of the electronic devices are equipped with anti-static devices. Taking a lock switch (Hold key) circuit in a DVD (Digital Versatile Disc) as an example, as shown in FIG. 1 , the lock switch circuit includes a double-row toggle switch SW1, an anti-static component D1 and a Microprocessor unit MCU. The toggle switch SW1 includes a first terminal 1, a second terminal 2, a third terminal 3, a fourth terminal 4, a fifth terminal 5, and a sixth terminal 6. The six terminals are arranged in three groups in a double row. The first terminal 1 is connected to the fourth terminal 4; the second terminal 2 is connected to the fifth terminal 5 and is connected in series with the microprocessor unit MCU, and the third terminal 3 is connected to the sixth terminal 6. And connected to a power terminal VCC. When the toggle switch SW1 is toggled from the second terminal 2 to the third terminal 3, or from the fifth terminal 5 to the sixth terminal 6, the circuit between the power terminal VCC and the microprocessor unit MUC is turned on, thereby The microprocessor unit MCU controls the key lock on the DVD to prevent the user from touching the button to cause an erroneous operation.

However, since the double-dial toggle switch SW1 is repeatedly operated, static electricity is easily generated and the circuit of the microprocessor unit MCU is entered by the lock switch. As shown in FIG. 1, an anti-static component D1 is added. One end of the electrostatic element D1 is connected between the second terminal 2 and the microprocessor unit MCU, and the other end is grounded, and the static electricity is discharged to the ground through the anti-static element D1 to prevent damage to the micro-processing unit MCU by static electricity. However, the use of the antistatic element D1 increases the cost of the electronic device.

In view of the above problems, the present invention provides an antistatic switch including a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal, and a sixth terminal. The six terminals are arranged in a double row, wherein the first terminal, the second terminal, and the third terminal are located at one side of the toggle switch, and the fourth terminal, the fifth terminal, and the sixth terminal are correspondingly located The other side of the toggle switch. a second terminal located at an intermediate position of one side of the double-dial toggle switch is a common contact terminal connected to the microprocessor unit, and one of the first terminal and the third terminal on both sides of the second terminal One power terminal is connected and the other is suspended; the fourth terminal, the fifth terminal and the sixth terminal on the other side of the double row toggle switch are connected and connected to the ground.

The invention also provides an electronic device with an antistatic switch, the electronic device comprising a power terminal, a microprocessor unit and an antistatic switch connected between the power terminal and the microprocessor unit. The antistatic switch includes a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal, and a sixth terminal, wherein the six terminals are arranged in a double row, wherein the first terminal, the first terminal The two terminals and the third terminal are located at one side of the toggle switch, and the fourth terminal, the fifth terminal and the sixth terminal are correspondingly located on the other side of the toggle switch. a second terminal located at an intermediate position of one side of the double-dial toggle switch is a common contact terminal connected to the microprocessor unit, and one of the first terminal and the third terminal on both sides of the second terminal One power terminal is connected and the other is suspended; the fourth terminal, the fifth terminal and the sixth terminal on the other side of the double row toggle switch are connected and connected to the ground. Wherein the first terminal and the third terminal of the antistatic switch are selectively connectable to the second terminal, when the terminal connected to the power terminal of the first terminal and the third terminal is connected to the second terminal The micro processing unit generates a first control signal to cause the electronic device to generate a first function, and when the terminals of the first terminal and the third terminal that are suspended are connected to the second terminal, the micro processing unit generates a second control signal The electronic device is caused to generate a second function.

The antistatic switch and the electronic device having the antistatic switch of the present invention can effectively prevent static electricity from being discharged to the electronic device by connecting the terminals on one side of the double row toggle switch to the ground terminal to discharge the static electricity. Damaged, simple in structure and cost effective.

The antistatic switch and the electronic device having the antistatic switch of the present invention will be further described in detail below with reference to the accompanying drawings.

Please refer to FIG. 2 , which is a schematic structural diagram of a circuit of an electronic device with an antistatic switch according to an embodiment of the present invention. The electronic device 100 with an antistatic switch includes an antistatic switch SW1 and a microprocessor unit MCU. In the embodiment, the double-row toggle switch SW1 includes a first terminal 1, a second terminal 2, a third terminal 3, a fourth terminal 4, a fifth terminal 5, and a sixth terminal 6, and the six terminals are two The two terminals are arranged in a double row, that is, the first terminal 1, the second terminal 2, and the third terminal 3 are located on one side of the toggle switch SW1, and the fourth terminal 4, the fifth terminal 5, and the sixth terminal 6 correspond to each other. The ground is located on the other side of the toggle switch, wherein the first terminal 1 is opposite to the fourth terminal 4, the second terminal 2 is opposite to the fifth terminal 5, and the third terminal 3 is opposite to the sixth terminal 6.

The second terminal 2 located at a middle position of one side of the double-dial toggle switch SW1 is a common contact terminal, and is connected to the microprocessor unit MCU, and the first terminal 1 and the third terminal are located at two sides of the second terminal 2 One of the three is connected to one power terminal VCC, and the other is suspended. In the present embodiment, the first terminal 1 is suspended, and the third terminal 3 is connected to the power supply terminal VCC. When the double-dial toggle switch SW1 is toggled from the second terminal 2 to the first terminal 1, the power terminal VCC is disconnected from the microprocessor unit MCU, and the microprocessor unit MCU generates a first The control signal controls the electronic device 100 to implement a first function. When the double-dial toggle switch SW1 is toggled from the second terminal 2 to the third terminal 3, the microprocessor unit MCU is electrically connected to the power supply terminal VCC, and the microprocessor unit MCU generates a second control signal control. The electronic device 200 implements a second function. In the embodiment, the electronic device 100 is a DVD (Digital Versatile Disc), and the anti-static switch SW1 is a DVD button lock switch for controlling key lock and unlock in the DVD machine. Wherein, when the double-row toggle switch SW1 is toggled from the second terminal 2 to the first terminal 1, the microprocessor unit MCU generates a first control signal to control the button of the DVD machine not to be locked, on the DVD machine The buttons are operational. When the double-dial toggle switch SW1 is toggled from the second terminal 2 to the third terminal 3, the microprocessor MCU generates a control signal to control the button of the DVD machine to be locked, so that the DVD machine button is inoperable.

The fourth terminal 4, the fifth terminal 5, and the sixth terminal 6 on the other side of the double-dial toggle switch SW1 are connected and connected to the ground GND. When static electricity enters the anti-static switch SW1, The antistatic switch SW1 discharges static electricity to the ground GND through the fourth terminal 4, the fifth terminal 5, and the sixth terminal 6, thereby eliminating the influence of static electricity on the internal circuit.

It is to be understood that the above-described embodiments are merely illustrative of the invention and are not intended to limit the invention. Variations made by the person skilled in the art in the corresponding technical field in accordance with the invention are within the scope of protection of the invention.

100. . . Electronic device

SW1. . . Anti-static switch

MCU. . . Microprocessor unit

D1. . . Anti-static component

1. . . First terminal

2. . . Second terminal

3. . . Third terminal

4. . . Fourth terminal

5. . . Fifth terminal

6. . . Sixth terminal

VCC. . . Power terminal

GND. . . Ground terminal

1 is a schematic circuit diagram of an antistatic switch in the prior art.

2 is a circuit diagram of an electronic device having an antistatic switch according to an embodiment of the present invention.

100. . . Electronic device

SW1. . . Anti-static switch

MCU. . . Microprocessor unit

1. . . First terminal

2. . . Second terminal

3. . . Third terminal

4. . . Fourth terminal

5. . . Fifth terminal

6. . . Sixth terminal

VCC. . . Power terminal

GND. . . Ground terminal

Claims (4)

An antistatic switch is applied to an electronic device, wherein the electronic device includes a microprocessor unit and a power terminal, and when the microprocessor unit is connected to the power terminal, generates a control signal to control the electronic device to implement a corresponding The improvement is that the antistatic switch is connected between the power terminal and the microprocessor unit, and the antistatic switch comprises:
a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal, and a sixth terminal, wherein the six terminals are arranged in a double row, wherein the first terminal, the second terminal, and the third terminal Located on one side of the toggle switch, the fourth terminal, the fifth terminal, and the sixth terminal are correspondingly located on the other side of the toggle switch;
a second terminal located at an intermediate position of one side of the double-dial toggle switch is a common contact terminal connected to the microprocessor unit, and one of the first terminal and the third terminal on both sides of the second terminal One power terminal is connected and the other is suspended; the fourth terminal, the fifth terminal and the sixth terminal on the other side of the double row toggle switch are connected and connected to the ground. An electronic device having an antistatic switch, the electronic device comprising a power terminal, a microprocessor unit, and an antistatic switch connected between the power terminal and the microprocessor unit, wherein the antistatic switch is improved include:
a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal, and a sixth terminal, wherein the six terminals are arranged in a double row, wherein the first terminal, the second terminal, and the third terminal Located on one side of the toggle switch, the fourth terminal, the fifth terminal, and the sixth terminal are correspondingly located on the other side of the toggle switch;
a second terminal located at an intermediate position of one side of the double-dial toggle switch is a common contact terminal connected to the microprocessor unit, and one of the first terminal and the third terminal on both sides of the second terminal One power terminal is connected and the other is suspended; the fourth terminal, the fifth terminal and the sixth terminal on the other side of the double row toggle switch are connected and connected to the ground. An electronic device with an antistatic switch according to claim 2, wherein one of the first terminal and the third terminal of the antistatic switch is selectively connectable to the second terminal, when the first When the terminal and the terminal connected to the power terminal of the third terminal are connected to the second terminal, the micro processing unit generates a first control signal to cause the electronic device to generate the first function, and the first terminal and the third terminal are suspended. When the terminal is connected to the second terminal, the microprocessor unit generates a second control signal to cause the electronic device to generate the second function. The electronic device with an antistatic switch according to claim 3, wherein the electronic device is a DVD, and the antistatic switch is a DVD button lock switch, and the first terminal and the third terminal are connected to the power terminal. When the terminal is connected to the second terminal, the micro processing unit generates a first control signal to control a button of the DVD machine to be locked, and a terminal that is suspended in the first terminal and the third terminal is connected to the second terminal The microprocessor unit generates a second control signal to control the button of the DVD station not to be locked.